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[youtubedl] / youtube_dl / extractor / egghead.py
1 # coding: utf-8
2 from __future__ import unicode_literals
3
4 from .common import InfoExtractor
5 from ..compat import compat_str
6 from ..utils import (
7 determine_ext,
8 int_or_none,
9 try_get,
10 unified_timestamp,
11 url_or_none,
12 )
13
14
15 class EggheadCourseIE(InfoExtractor):
16 IE_DESC = 'egghead.io course'
17 IE_NAME = 'egghead:course'
18 _VALID_URL = r'https://egghead\.io/courses/(?P<id>[^/?#&]+)'
19 _TEST = {
20 'url': 'https://egghead.io/courses/professor-frisby-introduces-composable-functional-javascript',
21 'playlist_count': 29,
22 'info_dict': {
23 'id': '72',
24 'title': 'Professor Frisby Introduces Composable Functional JavaScript',
25 'description': 're:(?s)^This course teaches the ubiquitous.*You\'ll start composing functionality before you know it.$',
26 },
27 }
28
29 def _real_extract(self, url):
30 playlist_id = self._match_id(url)
31
32 lessons = self._download_json(
33 'https://egghead.io/api/v1/series/%s/lessons' % playlist_id,
34 playlist_id, 'Downloading course lessons JSON')
35
36 entries = []
37 for lesson in lessons:
38 lesson_url = url_or_none(lesson.get('http_url'))
39 if not lesson_url:
40 continue
41 lesson_id = lesson.get('id')
42 if lesson_id:
43 lesson_id = compat_str(lesson_id)
44 entries.append(self.url_result(
45 lesson_url, ie=EggheadLessonIE.ie_key(), video_id=lesson_id))
46
47 course = self._download_json(
48 'https://egghead.io/api/v1/series/%s' % playlist_id,
49 playlist_id, 'Downloading course JSON', fatal=False) or {}
50
51 playlist_id = course.get('id')
52 if playlist_id:
53 playlist_id = compat_str(playlist_id)
54
55 return self.playlist_result(
56 entries, playlist_id, course.get('title'),
57 course.get('description'))
58
59
60 class EggheadLessonIE(InfoExtractor):
61 IE_DESC = 'egghead.io lesson'
62 IE_NAME = 'egghead:lesson'
63 _VALID_URL = r'https://egghead\.io/(?:api/v1/)?lessons/(?P<id>[^/?#&]+)'
64 _TESTS = [{
65 'url': 'https://egghead.io/lessons/javascript-linear-data-flow-with-container-style-types-box',
66 'info_dict': {
67 'id': '1196',
68 'display_id': 'javascript-linear-data-flow-with-container-style-types-box',
69 'ext': 'mp4',
70 'title': 'Create linear data flow with container style types (Box)',
71 'description': 'md5:9aa2cdb6f9878ed4c39ec09e85a8150e',
72 'thumbnail': r're:^https?:.*\.jpg$',
73 'timestamp': 1481296768,
74 'upload_date': '20161209',
75 'duration': 304,
76 'view_count': 0,
77 'tags': ['javascript', 'free'],
78 },
79 'params': {
80 'skip_download': True,
81 'format': 'bestvideo',
82 },
83 }, {
84 'url': 'https://egghead.io/api/v1/lessons/react-add-redux-to-a-react-application',
85 'only_matching': True,
86 }]
87
88 def _real_extract(self, url):
89 display_id = self._match_id(url)
90
91 lesson = self._download_json(
92 'https://egghead.io/api/v1/lessons/%s' % display_id, display_id)
93
94 lesson_id = compat_str(lesson['id'])
95 title = lesson['title']
96
97 formats = []
98 for _, format_url in lesson['media_urls'].items():
99 format_url = url_or_none(format_url)
100 if not format_url:
101 continue
102 ext = determine_ext(format_url)
103 if ext == 'm3u8':
104 formats.extend(self._extract_m3u8_formats(
105 format_url, lesson_id, 'mp4', entry_protocol='m3u8',
106 m3u8_id='hls', fatal=False))
107 elif ext == 'mpd':
108 formats.extend(self._extract_mpd_formats(
109 format_url, lesson_id, mpd_id='dash', fatal=False))
110 else:
111 formats.append({
112 'url': format_url,
113 })
114 self._sort_formats(formats)
115
116 return {
117 'id': lesson_id,
118 'display_id': display_id,
119 'title': title,
120 'description': lesson.get('summary'),
121 'thumbnail': lesson.get('thumb_nail'),
122 'timestamp': unified_timestamp(lesson.get('published_at')),
123 'duration': int_or_none(lesson.get('duration')),
124 'view_count': int_or_none(lesson.get('plays_count')),
125 'tags': try_get(lesson, lambda x: x['tag_list'], list),
126 'series': try_get(
127 lesson, lambda x: x['series']['title'], compat_str),
128 'formats': formats,
129 }